All Tools

Remove image backgrounds instantly with AI — 100% free, no sign-up required. Powered by browser-based machine learning (RMBG-1.4). All processing happens locally in your browser, privacy guaranteed.

Upscale images up to 4x with AI — 100% free, no sign-up required. Powered by Swin2SR running entirely in your browser. Enhance low-resolution photos, sharpen details, and restore old images with state-of-the-art AI super-resolution.

Generate professional product photos with AI. Upload your product image, pick a scene template (white background, kitchen, office, garden, model holding, and more), and get studio-quality product photography instantly. BYOK — use your own API key, unlimited generations. Free for single images, Pro unlocks batch generation.

Generate professional headshots and portraits with AI. Upload a selfie, pick a style (corporate, LinkedIn, passport, doctor, lawyer, executive, graduation, and more), and get studio-quality photos instantly. BYOK — use your own API key, unlimited generations. Free for single images, Pro unlocks batch generation.

Redesign your room with AI. Upload a room photo, and classic computer vision algorithms (Sobel edge detection + K-means clustering) automatically identify walls, floor, and ceiling regions. Pick a design style and select which regions to redesign — DALL-E 2 image editing generates the new look, seamlessly blended back. BYOK — use your own API key, unlimited redesigns.

Transform your photos into stunning artwork with AI. Choose from 5 iconic art styles — Candy, Mosaic, Rain Princess, Udnie, Pointilism — and watch your photo become a painting in seconds. 100% browser-side, no upload, completely free.

Generate funny memes with AI. Describe a scene, pick an art style, add text overlays — get a shareable meme in seconds. Powered by FLUX AI. Free with Google sign-in.

Convert audio and video to text with AI in your browser. Powered by Whisper WASM — 100% private, no upload to server. Supports 99 languages, exports SRT/VTT subtitles. Free online speech to text converter.

Convert text to natural speech with AI in your browser. Powered by SpeechT5 — 100% private, no upload to server. Multiple voices, adjustable speed, download WAV. Free online text to speech converter.

Estimate GPU VRAM usage for LLM inference with precision. Supports decoder-only and encoder-only models, GQA/MQA/MHA, multiple quantization schemes (FP16/INT8/INT4/GPTQ/AWQ), concurrent batch processing, tensor parallelism, and popular frameworks (vLLM, HuggingFace, TensorRT-LLM). Get instant breakdown: weights, KV cache, activations, overhead — plus recommended GPU configuration.

Free online word counter with real-time stats — words, characters, sentences, reading & speaking time. Built-in limits for X, Instagram, Amazon, YouTube, IELTS & TOEFL with over-limit warnings. Plus Top 10 keyword frequency analysis for SEO.

Count characters with and without spaces. Perfect for tweets, meta descriptions, and essays.

Convert text to uppercase, lowercase, title case, sentence case, camelCase instantly.

Reverse text, words, or lines instantly. Free online text reversing tool.

Generate placeholder text in Lorem Ipsum format. Choose paragraphs, sentences, or words.

Remove duplicate lines from text. Support line-by-line or whole-text deduplication with trim and case-insensitive options. Free online tool.

Mask sensitive information in text — phone numbers, emails, credit cards, SSN, ID cards, API keys, JWT tokens, MAC addresses. Custom regex support, file batch processing. 100% browser-based, privacy first. Free online tool.

Clean up text by removing empty lines, trailing spaces, leading spaces, merging blank lines. Free online text cleaner.

Compare two texts online and highlight differences. Side-by-side or inline diff view with word-level change detection. Find added, deleted, and modified content instantly. 100% browser-based, privacy first. Free, no sign-up required.

Browse and copy special characters that are hard to type on a keyboard — circled numbers, arrows, math symbols, Greek letters, Roman numerals, currency signs, fractions, and more. Click to copy instantly. Free online special characters tool.

Count word frequency in text instantly. See top words, sort by count or alphabetically, filter stop words, and export as CSV. Perfect for SEO keyword analysis and text mining. Free online word frequency counter.

Repeat text multiple times with custom separators. Add line numbers, choose newline/space/comma separation, and generate bulk text instantly. Free online text repeater tool.

Sort text lines alphabetically, by length, or randomly. Remove duplicates, trim whitespace, reverse order. Free online line sorting tool for lists, CSV data, and code lines.

Convert text to URL-friendly slugs instantly. Supports hyphen or underscore separators, lowercase, stop word removal, and custom rules. Perfect for SEO-friendly URLs, blog post permalinks, and product page URLs. Free online slug generator.

Encode text to Base64 or decode Base64 to text. Free online Base64 encoder and decoder.

Encode URLs to percent-encoding or decode them back. Free online URL encoder and decoder.

Convert special characters to HTML entities or decode entities back to characters.

Decode JWT tokens and inspect header and payload. Free online JWT decoder tool.

Convert text to hexadecimal (hex) and back. Free online hex encoder and decoder for debugging, packet analysis, and binary data inspection.

Convert text to Unicode escape sequences (\uXXXX) and back. Free online Unicode encoder and decoder for JavaScript, JSON, and debugging.

Escape or unescape JSON strings. Handles quotes, backslashes, newlines, and special characters. Free online JSON string escaper.

Translate text to Morse code and back. Free online Morse code translator and decoder. Supports letters, numbers, and punctuation.

Generate JWT tokens with custom header, payload, and secret. Supports HS256 algorithm. Free online JWT token generator.

Hide text, files, and images inside PNG images. AES-256 encryption, X-Ray mode, pixel Morse code, and more. 100% browser-based, your data never leaves your device.

Format, beautify, minify, and validate JSON data. Free online JSON formatter and validator.

Convert CSV data to JSON format instantly. Free online CSV to JSON converter.

Convert JSON data to YAML format and vice versa. Free online JSON to YAML converter.

Format, beautify, minify, and validate XML data. Free online XML formatter and validator with error reporting. No sign-up required.

Format, beautify, and validate YAML data. Free online YAML formatter and validator with error reporting. No sign-up required.

Format, beautify, and minify HTML code online. Powered by js-beautify — auto-fix indentation, line breaks, and tag structure. 100% browser-based, no upload. Free online HTML formatter and minifier.

Convert JSON data to CSV format instantly. Paste JSON array of objects and get clean CSV output. Handles nested objects, arrays, and various delimiters. Free online JSON to CSV converter.

Create Markdown tables visually. Add rows and columns, edit cells, set alignment, and generate clean Markdown table syntax. Import from CSV or paste data. Free online Markdown table generator.

View and explore CSV data in a sortable, searchable table. Paste CSV or upload a file, filter rows, sort columns, and export. Supports custom delimiters and large files. Free online CSV viewer.

Convert HTML to Markdown instantly. Supports headings, bold, italic, links, images, code blocks, lists, tables, blockquotes, and more. Clean Markdown output with copy and download. Free online HTML to Markdown converter.

Convert Markdown to HTML instantly. Supports headings, bold, italic, links, images, code blocks, lists, tables, blockquotes, and more. Live preview with copy HTML or download. Free online Markdown to HTML converter.

Calculate percentages, percentage change, and percentage difference. Free online tool.

Calculate Body Mass Index (BMI) with metric or imperial units. Free online BMI calculator.

Calculate exact age in years, months, days, hours. Free online age calculator.

Calculate date differences, add/subtract dates, work duration, and countdowns. Free online date calculator.

Calculate monthly mortgage payments with equal payment and equal principal methods. Compare total interest. Free online mortgage calculator.

Convert time between any time zones instantly. Compare times across cities worldwide, see time differences at a glance, and find the best meeting time across time zones. Free online time zone converter.

Calculate sales tax instantly. Enter the amount and tax rate to get the tax amount and total. Includes US state tax rates, reverse tax calculation, and GST/VAT support. Free online sales tax calculator.

Generate UUIDs (GUIDs) in various formats. Free online UUID generator.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes. Free online hash generator.

Test regular expressions with live highlighting and match results. Free online regex tester.

Generate strong, secure random passwords. Customize length, characters, and symbols.

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.

Convert numbers between binary, octal, decimal, and hexadecimal. Free online base converter.

Generate HMAC signatures (HMAC-SHA256, HMAC-SHA512, etc.) with hex or Base64 output. Free online HMAC generator.

Encrypt and decrypt text with AES-GCM or AES-CBC. Supports 128-bit and 256-bit keys. Free online AES encryption tool.

Generate RSA key pairs (2048/3072/4096 bit) in PEM format. Download public and private keys. Free online RSA key generator.

Format and beautify SQL queries online for free. Supports MySQL, PostgreSQL, SQL Server, Oracle, and more. Adjust indentation, keyword case, and line breaks. Minify SQL to one line. No sign-up required.

Generate and explain cron expressions visually. Build cron schedules with an interactive UI, see human-readable descriptions, and preview next run times. Free online cron expression generator.

Minify and beautify JavaScript, CSS, and HTML code online. Reduce file size for production or format code for readability. Free online code minifier and beautifier.

Search and copy emojis instantly. Browse by category, search by keyword, and click to copy. Free online emoji search tool.

Complete HTTP status code reference with descriptions, use cases, and examples. Search and filter all HTTP status codes — 1xx informational, 2xx success, 3xx redirection, 4xx client errors, 5xx server errors. Free online HTTP status code lookup.

Convert Hex color codes to RGB and vice versa. Free online color code converter.

Generate beautiful color palettes instantly. Press space to randomize, lock colors you love, copy HEX codes. Export as CSS variables or JSON. Free online color scheme generator.

Generate beautiful coloring book pages with AI. Choose from multiple styles — classic, mandala, anime, floral, fantasy and more. Perfect for kids and adults. Free preview, download HD version.

Generate AI pixel art and paint by numbers online. Choose a subject, pick a grid size, and create a printable color-by-numbers sheet. Fun for kids and relaxing for adults!

Create a magical bedtime story starring YOUR child! Enter their name, pick an adventure, and AI generates a personalized story with colorful illustrations. Watch it as a video or print coloring pages!

Turn any photo into a printable coloring page instantly. Upload a picture and our browser-based XDoG algorithm converts it into clean line art. 100% private — your photos never leave your device. Free, no sign-up required.

Convert length, weight, temperature, area, volume, speed, data, and time units. Free online unit converter.

Free online PDF toolkit: merge, split, compress, convert to images, rotate and delete pages. All processing in your browser, no upload required. 5-in-1 PDF tool suite.

Convert PDF documents to clean Markdown text. Extract headings, paragraphs, lists, and tables with structure preserved. 100% browser-based — your files never leave your device. Free online PDF to Markdown converter.

Convert PDF documents to editable Word (.doc) files. Extract text with heading detection and paragraph structure preserved. 100% browser-based — your files never leave your device. Free online PDF to Word converter.

Convert Markdown text to formatted Word (.docx) documents. Free online Markdown to Word converter.

Extract, edit, compress, and resize images in Word (.docx) documents online. Resize, rotate, reduce file size, and save changes back to .docx — all in your browser. 100% private, free, no sign-up required.

Analyze Word document heading structure and count words per section. Upload a .docx file to see a visual tree of Heading 1–6, word count per chapter, and estimated reading time. 100% browser-based, privacy first. Free online tool.

Fill Word (.docx) templates with data online. Upload a .docx with {{placeholders}}, fill in the form, and generate documents instantly. Batch generate from CSV. 100% browser-based, privacy first. Free, no sign-up required.

Compare two Word (.docx) documents side by side and highlight differences. Upload original and modified files to see added, deleted, and changed paragraphs instantly. 100% browser-based, privacy first. Free, no sign-up required.

Convert Word (.docx) documents to Markdown online. Upload a .docx file and get clean Markdown with headings, bold, italic, lists, tables, and links preserved. 100% browser-based, privacy first. Free, no sign-up required.

Merge multiple Word (.docx) documents into one file online. Reorder files by drag and drop, add page breaks between documents, and insert filenames as headings. 100% browser-based, privacy first. Free, no sign-up required.

Free QR code generator with logo embedding, artistic styles (dots, rounded, gradient), batch CSV support, and barcode generation. Create custom QR codes from URLs or text, add your logo, choose from multiple styles, export as PNG or SVG. Generate hundreds of QR codes from CSV and download as ZIP. No sign-up required.

Convert images between WebP, JPG, PNG formats. Resize, rotate, and crop images in your browser. Free online image converter.

Pixelate and mosaic images online. Multiple pixel shapes, color modes, area selection for privacy blur. Real-time preview, all local processing. Free online image pixelator.

Automatically detect and blur faces in photos. AI-powered face detection with multiple blur styles — Gaussian blur, mosaic, solid block, or emoji. 100% private, all processing in your browser. Free online face blurring tool.

View EXIF metadata of your photos online. Extract camera model, lens info, GPS location, exposure settings, date taken, and more. 100% browser-based — your photos never leave your device. Free online EXIF data viewer.

Convert multiple images at once. Support WebP/JPG/PNG interconversion, resize, text watermark, color balance. Download as ZIP. Free online batch image converter.

Create beautiful photo collages online for free. Choose from VS split, four-leaf clover, grid layouts and more. Upload photos, apply filters, drag to adjust, and download 1080px HD PNG. No sign-up required.

Compress images online for free. Reduce JPG, PNG, and WebP file size with adjustable quality. Batch compress multiple images and download as ZIP. 100% browser-based, no upload. Free online image compressor.

Generate favicons and app icons in all sizes from an uploaded image or a text logo. Supports web favicon (.ico + PNG), iOS app icons, Android app icons, and manifest.json. Download individually or as ZIP. 100% browser-based, free online tool.

Crop images in your browser with precision. Drag to select crop area, adjust aspect ratios (1:1, 4:3, 16:9, freeform), rotate, flip, and export as PNG, JPEG, or WebP. No upload required — 100% private. Free online image cropper.

Extract text from images instantly with AI-powered OCR. Upload, paste, or drag & drop any image — our browser-based OCR engine recognizes text in 100+ languages. 100% private, no upload to server. Free online OCR tool.

Compress video files in your browser with FFmpeg.wasm. Adjust CRF quality, resolution scaling, and audio bitrate. Supports MP4 and WebM output. 100% local processing, no upload. Free online video compressor.

Convert video formats in your browser: MP4, WebM, AVI, MOV, MKV, GIF. Powered by FFmpeg.wasm, 100% local processing, no upload. Free online video converter.

6-in-1 video toolkit: extract audio, trim clips, convert to GIF, add text watermark, burn SRT subtitles, merge videos. All in your browser with FFmpeg.wasm. Free online video tools.

Watch AI learn in real-time! This interactive Reinforcement Learning demo shows a Q-Learning agent mastering a grid world — from random exploration to optimal policy. Adjust hyperparameters, visualize Q-values and policy arrows, and see the learning curve. 100% browser-side, no sign-up. Perfect for learning RL.

Watch SARSA and Q-Learning learn side-by-side on the classic Cliff Walking benchmark! See on-policy vs off-policy RL diverge in real-time — SARSA learns safe paths, Q-Learning learns optimal but risky paths. Adjust hyperparameters, compare learning curves, and understand the core difference in RL. 100% browser-side.

See why Q-Learning overestimates Q-values and how Double Q-Learning fixes it! Watch Q-Learning, Double Q-Learning, and the exact optimal Q* (via Value Iteration) learn side-by-side on Cliff Walking. Real-time bias chart shows Q-Learning's systematic positive bias vs Double Q-Learning's unbiased estimates. 100% browser-side.

Watch Monte Carlo control learn the optimal Blackjack strategy from scratch! The agent plays thousands of hands per second, using first-visit MC to estimate Q-values. See the strategy table converge to the famous optimal Blackjack playbook. Compare with the known optimal policy. 100% browser-side, no server needed.

Watch Dyna-Q learn a maze 10x faster than Q-Learning using "imagined" experience! After each real step, Dyna-Q replays N planning steps through a learned model. See the shortcut maze experiment: when the environment changes mid-training, Dyna-Q adapts in episodes, not dozens. 100% browser-side.

Watch a neural network learn to balance a pole on a cart — right in your browser! This is Deep Q-Network (DQN) with TensorFlow.js: experience replay, target network, and ε-greedy exploration. See the AI go from random flailing to 500-step perfect balance in real-time. 100% browser-side, no server.

Three neural networks race on CartPole! Compare vanilla DQN vs Double DQN (decouples action selection from evaluation to fix overestimation) vs Dueling DQN (separates state value from action advantage). Watch Q-value estimates, training stability, and learning speed differ in real-time. TensorFlow.js, 100% browser-side.

Watch a neural network learn a policy directly — no Q-values, no value function! REINFORCE (Monte Carlo Policy Gradient) is the purest form of policy-based RL. The agent plays full episodes, then updates its strategy using the policy gradient theorem: ∇J = E[∇log π(a|s) · G]. See action probabilities shift in real-time as the AI learns. TensorFlow.js, 100% browser-side.

REINFORCE has high variance. A2C fixes it by adding a Critic network that estimates V(s) as a baseline. The Actor now learns from the advantage A = G - V(s) — "how much better was this action than expected?" Watch two agents train side by side: vanilla REINFORCE vs A2C with baseline. See the variance drop and training stabilize. TensorFlow.js, 100% browser-side.

A2C throws away data after one update. PPO reuses it! By clipping the policy ratio r = π_new/π_old to [1-ε, 1+ε], PPO safely performs multiple epochs on the same batch — getting more learning per episode without destabilizing. This is OpenAI's go-to algorithm (and the RLHF engine behind ChatGPT). Watch A2C vs PPO train side by side: PPO learns faster, more stably, and recovers from bad episodes. TensorFlow.js, 100% browser-side.

Everything so far used discrete actions (left/right). Real robots need continuous control — motor torque, steering angle, voltage. SAC handles this with three innovations: (1) Maximum entropy — the agent optimizes reward PLUS policy entropy, balancing exploitation and exploration automatically. (2) Stochastic policy — the Actor outputs a Gaussian distribution (mean + std), not a single action. (3) Twin Q-networks — take the min of two critics to fight overestimation. Watch a pendulum swing up from scratch, purely in your browser. TensorFlow.js, 100% browser-side.

The grand finale: run DQN, Double DQN, REINFORCE, A2C, and PPO simultaneously on the same CartPole environment and watch their learning curves diverge in real time. Which algorithm converges fastest? Which is most stable? Which solves CartPole in the fewest episodes? See the answer unfold before your eyes. Plus a complete algorithm selection decision tree — when to use value-based vs policy-based, on-policy vs off-policy, discrete vs continuous. TensorFlow.js, 100% browser-side.

Drive a robot around a room in this interactive 2.5D simulator! Use WASD or set autonomous navigation targets with A* pathfinding. Watch ultrasonic sensors detect obstacles in real-time, see collision detection in action, and explore different control modes. Perfect for understanding robot perception, path planning, and control basics. 100% browser-side, no sign-up.

Generate Open Graph meta tags for social media sharing. Create og:title, og:description, og:image, og:url, og:type tags with live preview. Perfect for Facebook, LinkedIn, and Discord sharing. Free online Open Graph generator.

Generate SEO meta tags instantly. Create title, description, keywords, robots, canonical, viewport, and charset tags. Includes Twitter Card and Open Graph support. Free online meta tag generator for SEO.

Validate XML sitemaps for protocol compliance and check URL liveness. Detects errors in XML structure, namespace, URL format, duplicate links, and broken pages. Free online sitemap checker with server-side URL status verification.

Generate robots.txt files for your website instantly. Control search engine crawlers, set crawl delays, block specific paths, and add sitemap URLs. Supports all major bots including Googlebot, Bingbot, and GPTBot. Free online robots.txt generator.

Create beautiful CSS gradients visually. Linear, radial, and conic gradients with multiple color stops, angle control, and one-click CSS code copy. Free online tool.

Generate CSS box-shadow visually. Adjust offset, blur, spread, color, and inset. Multiple shadow layers support. Copy CSS code with one click. Free online tool.

Create CSS Grid layouts visually. Define rows, columns, gaps, and areas with a live preview. Generate clean CSS code with one click. Free online CSS Grid generator for web developers.

Generate beautiful SVG waves, blobs, and decorative shapes for your designs. Customize colors, layers, and complexity. Export as SVG code or PNG. Free online SVG wave generator.